When I try to reply to any mail, it doesn't work. I fill in the square for "reply" and press submit, but the mail page just reloads. No textbox for writing my reply opens.

But sending mail normally is still working. I can go to someone's page and click the "send mail" link, and that works fine.

This is not a bug. When you check the reply box and click submit, the page will reload the reply box and insert the stables stable number. You just start typing in the box you would normally send messages in, and then submit. It will reply back to the person.

which browser do you use? And did you recently clear cookies and cache from your browser?

Oh. Thanks, Idle Lane Farms. I overlooked that. It's been a while since I talked to anyone in-game, so I guess I forgot.

Never mind, not a bug. I'm vey sorry for causing you trouble all trouble.